oj.uz

Submission #259608

# Submission time Handle Problem Language Result Execution time Memory
259608 2020-08-08T04:10:39 Z zaneyu Arranging Shoes (IOI19_shoes) C++14
100 / 100
 147 ms 20600 KB 
/*input
2
2 1 -1 -2
*/
//#include "shoes.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<long long, null_type, less_equal<long long>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#pragma GCC optimize("unroll-loops,no-stack-protector")
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld double
#define pii pair<ll,ll>
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
const ll maxn=2e5+5;
const ll maxlg=__lg(maxn)+2;
const ll INF64=4e18;
const int INF=0x3f3f3f3f;
const ll MOD=1e9+7;
const ld PI=acos(-1);
const ld eps=1e-9;
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
#define MP make_pair
ll mult(ll a,ll b){
    ll res=0LL;
    while(b){
        if(b&1) res=(res+a)%MOD;
        a=(a+a)%MOD;
        b>>=1;
    }
    return res%MOD;
}
ll mypow(ll a,ll b){
    ll res=1LL;
    while(b){
        if(b&1) res=res*a%MOD;
        a=a*a%MOD;
        b>>=1;
    }
    return res;
}
int bit[maxn];
int n;
void upd(int x,int v){
    ++x;
    while(x<=n){
        
        bit[x]+=v;
        x+=lowb(x);
    }
}
int query(int x){
    ++x;
    int ans=0;
    while(x>0){
        ans+=bit[x];
        x-=lowb(x);
    }
    return ans;
}
vector<int> l[maxn],r[maxn];
int pairs[maxn];
bool match[maxn];
long long count_swaps(std::vector<int> s) {
    n=sz(s);
    ll ans=0;
    REP(i,n){
        if(s[i]<0) l[-s[i]].pb(i);
        else r[s[i]].pb(i);
        upd(i,1);
    }
    REP1(i,n/2){
        REP(j,sz(l[i])){
            pairs[l[i][j]]=r[i][j];
            pairs[r[i][j]]=l[i][j];
            if(l[i][j]>r[i][j]) ++ans;
        }
    }
    REP(i,n){
        if(match[i]) continue;
        match[i]=match[pairs[i]]=1;
        upd(i,-1);
        upd(pairs[i],-1);
        ans+=query(pairs[i]);
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 5 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 5 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 6 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 6 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 ms 9856 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 6 ms 9680 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 8 ms 9728 KB Output is correct
7 Correct 7 ms 9764 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 8 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 8 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 14 ms 10368 KB Output is correct
21 Correct 14 ms 10240 KB Output is correct
22 Correct 63 ms 13976 KB Output is correct
23 Correct 50 ms 14068 KB Output is correct
24 Correct 69 ms 14060 KB Output is correct
25 Correct 47 ms 13936 KB Output is correct
26 Correct 52 ms 15340 KB Output is correct
27 Correct 50 ms 15084 KB Output is correct
28 Correct 52 ms 15216 KB Output is correct
29 Correct 50 ms 15216 KB Output is correct
30 Correct 51 ms 15224 KB Output is correct
31 Correct 52 ms 15236 KB Output is correct
32 Correct 53 ms 15404 KB Output is correct
33 Correct 48 ms 14960 KB Output is correct
34 Correct 49 ms 15344 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 50 ms 15216 KB Output is correct
38 Correct 51 ms 15216 KB Output is correct
39 Correct 52 ms 15216 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 87 ms 19320 KB Output is correct
6 Correct 63 ms 15736 KB Output is correct
7 Correct 82 ms 20600 KB Output is correct
8 Correct 51 ms 15236 KB Output is correct
9 Correct 82 ms 20600 KB Output is correct
10 Correct 76 ms 17400 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 5 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 5 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 6 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 6 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 ms 9856 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 6 ms 9680 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 6 ms 9728 KB Output is correct
38 Correct 7 ms 9728 KB Output is correct
39 Correct 6 ms 9728 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 7 ms 9856 KB Output is correct
42 Correct 7 ms 9856 KB Output is correct
43 Correct 7 ms 9856 KB Output is correct
44 Correct 7 ms 9728 KB Output is correct
45 Correct 8 ms 9728 KB Output is correct
46 Correct 7 ms 9728 KB Output is correct
47 Correct 7 ms 9728 KB Output is correct
48 Correct 7 ms 9728 KB Output is correct
49 Correct 7 ms 9856 KB Output is correct
50 Correct 8 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 9 ms 9856 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 5 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 6 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 5 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 6 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 6 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 6 ms 9728 KB Output is correct
32 Correct 6 ms 9856 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 6 ms 9680 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 6 ms 9728 KB Output is correct
38 Correct 6 ms 9728 KB Output is correct
39 Correct 6 ms 9728 KB Output is correct
40 Correct 8 ms 9728 KB Output is correct
41 Correct 7 ms 9764 KB Output is correct
42 Correct 7 ms 9728 KB Output is correct
43 Correct 7 ms 9728 KB Output is correct
44 Correct 6 ms 9728 KB Output is correct
45 Correct 6 ms 9728 KB Output is correct
46 Correct 6 ms 9728 KB Output is correct
47 Correct 6 ms 9728 KB Output is correct
48 Correct 8 ms 9728 KB Output is correct
49 Correct 6 ms 9728 KB Output is correct
50 Correct 7 ms 9728 KB Output is correct
51 Correct 8 ms 9728 KB Output is correct
52 Correct 7 ms 9728 KB Output is correct
53 Correct 7 ms 9728 KB Output is correct
54 Correct 14 ms 10368 KB Output is correct
55 Correct 14 ms 10240 KB Output is correct
56 Correct 63 ms 13976 KB Output is correct
57 Correct 50 ms 14068 KB Output is correct
58 Correct 69 ms 14060 KB Output is correct
59 Correct 47 ms 13936 KB Output is correct
60 Correct 52 ms 15340 KB Output is correct
61 Correct 50 ms 15084 KB Output is correct
62 Correct 52 ms 15216 KB Output is correct
63 Correct 50 ms 15216 KB Output is correct
64 Correct 51 ms 15224 KB Output is correct
65 Correct 52 ms 15236 KB Output is correct
66 Correct 53 ms 15404 KB Output is correct
67 Correct 48 ms 14960 KB Output is correct
68 Correct 49 ms 15344 KB Output is correct
69 Correct 6 ms 9728 KB Output is correct
70 Correct 6 ms 9728 KB Output is correct
71 Correct 50 ms 15216 KB Output is correct
72 Correct 51 ms 15216 KB Output is correct
73 Correct 52 ms 15216 KB Output is correct
74 Correct 6 ms 9728 KB Output is correct
75 Correct 6 ms 9728 KB Output is correct
76 Correct 6 ms 9728 KB Output is correct
77 Correct 6 ms 9728 KB Output is correct
78 Correct 87 ms 19320 KB Output is correct
79 Correct 63 ms 15736 KB Output is correct
80 Correct 82 ms 20600 KB Output is correct
81 Correct 51 ms 15236 KB Output is correct
82 Correct 82 ms 20600 KB Output is correct
83 Correct 76 ms 17400 KB Output is correct
84 Correct 6 ms 9728 KB Output is correct
85 Correct 7 ms 9728 KB Output is correct
86 Correct 6 ms 9728 KB Output is correct
87 Correct 7 ms 9728 KB Output is correct
88 Correct 7 ms 9856 KB Output is correct
89 Correct 7 ms 9856 KB Output is correct
90 Correct 7 ms 9856 KB Output is correct
91 Correct 7 ms 9728 KB Output is correct
92 Correct 8 ms 9728 KB Output is correct
93 Correct 7 ms 9728 KB Output is correct
94 Correct 7 ms 9728 KB Output is correct
95 Correct 7 ms 9728 KB Output is correct
96 Correct 7 ms 9856 KB Output is correct
97 Correct 8 ms 9728 KB Output is correct
98 Correct 7 ms 9728 KB Output is correct
99 Correct 9 ms 9856 KB Output is correct
100 Correct 7 ms 9856 KB Output is correct
101 Correct 12 ms 10752 KB Output is correct
102 Correct 12 ms 10368 KB Output is correct
103 Correct 96 ms 20600 KB Output is correct
104 Correct 147 ms 20600 KB Output is correct
105 Correct 96 ms 17912 KB Output is correct
106 Correct 82 ms 20600 KB Output is correct
107 Correct 71 ms 15992 KB Output is correct
108 Correct 71 ms 16248 KB Output is correct
109 Correct 49 ms 15472 KB Output is correct
110 Correct 49 ms 15216 KB Output is correct
111 Correct 93 ms 19960 KB Output is correct
112 Correct 103 ms 19192 KB Output is correct
113 Correct 65 ms 15864 KB Output is correct
114 Correct 81 ms 20600 KB Output is correct
115 Correct 99 ms 20600 KB Output is correct